hbase-server/src/test/java/org/apache/hadoop/hbase/ProcedureTestUtil.java

   1 /**
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements.  See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership.  The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License.  You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18 package org.apache.hadoop.hbase;
  19
  20 import java.io.IOException;
  21 import java.util.Iterator;
  22 import java.util.Optional;
  23 import org.apache.hadoop.hbase.procedure2.Procedure;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 import org.apache.hbase.thirdparty.com.google.gson.JsonArray;
  28 import org.apache.hbase.thirdparty.com.google.gson.JsonElement;
  29 import org.apache.hbase.thirdparty.com.google.gson.JsonObject;
  30 import org.apache.hbase.thirdparty.com.google.gson.JsonParser;
  31
  32 import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureState;
  33
  34 public final class ProcedureTestUtil {
  35
  36   private static final Logger LOG = LoggerFactory.getLogger(ProcedureTestUtil.class);
  37
  38   private ProcedureTestUtil() {
  39   }
  40
  41   private static Optional<JsonObject> getProcedure(HBaseTestingUtil util,
  42       Class<? extends Procedure<?>> clazz, JsonParser parser) throws IOException {
  43     JsonArray array = parser.parse(util.getAdmin().getProcedures()).getAsJsonArray();
  44     Iterator<JsonElement> iterator = array.iterator();
  45     while (iterator.hasNext()) {
  46       JsonElement element = iterator.next();
  47       JsonObject obj = element.getAsJsonObject();
  48       String className = obj.get("className").getAsString();
  49       if (className.equals(clazz.getName())) {
  50         return Optional.of(obj);
  51       }
  52     }
  53     return Optional.empty();
  54   }
  55
  56   public static void waitUntilProcedureWaitingTimeout(HBaseTestingUtil util,
  57       Class<? extends Procedure<?>> clazz, long timeout) throws IOException {
  58     JsonParser parser = new JsonParser();
  59     util.waitFor(timeout,
  60       () -> getProcedure(util, clazz, parser)
  61         .filter(o -> ProcedureState.WAITING_TIMEOUT.name().equals(o.get("state").getAsString()))
  62         .isPresent());
  63   }
  64
  65   public static void waitUntilProcedureTimeoutIncrease(HBaseTestingUtil util,
  66       Class<? extends Procedure<?>> clazz, int times) throws IOException, InterruptedException {
  67     JsonParser parser = new JsonParser();
  68     long oldTimeout = 0;
  69     int timeoutIncrements = 0;
  70     for (;;) {
  71       long timeout = getProcedure(util, clazz, parser).filter(o -> o.has("timeout"))
  72         .map(o -> o.get("timeout").getAsLong()).orElse(-1L);
  73       if (timeout > oldTimeout) {
  74         LOG.info("Timeout incremented, was {}, now is {}, increments={}", timeout, oldTimeout,
  75           timeoutIncrements);
  76         oldTimeout = timeout;
  77         timeoutIncrements++;
  78         if (timeoutIncrements > times) {
  79           break;
  80         }
  81       }
  82       Thread.sleep(1000);
  83     }
  84   }
  85 }